Road-scraper



4 Sheets-Sfi1eet 1.

(No Model.)

R.- N. GOWELL.

ROAD SORAPER.

Patentedfeb. 3,1885.

N. PETERS, Pllnlniilhognphcr. Washington. at;

(No Model.) 4 Sheets-Sheet 2.

R. N. GOWELL.

ROAD SGRAPER.

N0.3l1,48Z.. Patented Feb. 3, 1885.

(No Model.)

' 4 Sheets-Sheet 3. R. N. GOWELL.

ROAD SGBAPER.

Patented Feb. 3, 1885.

(No Model.) 4 Sheets-Sheet 4.

R. N. GOWELL. ROAD SGRAPER.

i I E I "51$ llrrn .a'rnnr rricn.

ROBERT N. GOWELL, OF ASHBURNHAM, MASSACHUSETTS.

ROAD-SCRAPER.

I SPECIFICATION forming part of Letters Patent No. 311,482, dated February 3, 1885.

Application filed June 6, 1884. (No model.)

1' 0 aZZ whom it may concern.-

Be it known that 1, ROBERT N. GownLL,of Ashburnham, in the county of Worcester, State of Massachusetts, have invented a certain new and useful Improvement in Road- Scrapers, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art orscience to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming a part of this specification, in which Figure 1 is a top plan view of my improved scraper; Fig. 2, a bottom plan view of the same; Fig. 3, a vertical longitudinal section, and Fig. 4 a rear end elevation.

Like letters and figures of reference indicate corresponding parts in the different figures of the drawings.

My invention relates to that class of roadscrapers in which the scraper proper is adjustable both vertically and laterally; and it consists in a novel construction and arrangement of the parts, as hereinafter more fully set forth and claimed, by which a more effcctive and desirable article of this character is produced than is now in ordinary use.

The nature and operation of the improvement will be readily understood by all conversant with such matters from the following explanation.

In the drawings, A represents the main frame or body of the machine,which is mounted at its forward end on the small wheels Y, and at its rear end on the large wheels X, j ournaled, respectively, on the axles Zaud &, the forward axle being provided with the fifth-wheel or plate q, king-boltr, and tongue or pole j.

Projecting downwardly from near either end of the frame A there is a centrally-dis posed bar or lug, V, provided with an elongated vertical slot, '0, the lower end of the slot being closed by the cross-bar t, and disposed beneath said frame between the axles Z 8:

there is an auxiliary frame, N, carrying the scraper U. The auxiliary frame is rectangular in shape, and is suspended by means of a centrallydisposed pin or stud, a, at either end, the studs projecting into the slots 12 of the lugsV and resting on the cross-bars t, thereby journa-ling the frame so that it may be tilted or partially rotated laterally in either direction.

Projecting upwardly from a cross-bar, 0, near the forward part of the frame A, and at each end of the same, there is a standard, E, carrying a centrally-pivoted lever, H,

A cross-bar, D, is mounted on the rear portion of the frame A, and projecting upwardly from each end of this bar there is a standard, F, carrying a centrally-pivoted lever, I, and also an eccentrically pivoted lever, J, the long arms of the levers J extending backwardly over a step, B, connected with the rear end of the frame A, and designed to beoccupied by the operator of the machine.

The forward corners of the frame N are respectively connected to the forward ends of the levers H by rods h, the rear corners of said frame being also respectively connected to the rear ends of the levers I by the rods 12.

The inner or adjoining ends of the levers I H are connected or jointed together by the links or rods 1, and the inner ends or short arms of the levers J are respectively pivoted or jointed to the latter rods near their centers.

A standard, G, is mounted on the crossbar b of the frame N ,and centrally pivoted in this standard there is a lever, K.

A rocker-shaft, O, is journaled horizontally in the forward end of the frame N, and pro- Vided with the centrally-arranged arm n, and at either end with an arm 1?, the arm n being connected with the forward end of the lever K by a rod, 2'.

A cross bar, T, is centrally disposed on the frame N, this bar being provided with an'elongated slot, 10, and carrying a slide, S.

Disposed beneath the frame N there is a \l-shaped frame, Q, provided with the vertically-arranged stud or journal R, which projects upwardly through the slot to and slide S, and is provided with a pin, which passes through its upper end above said slide,the frame Q, being suspended on said stud.

Attached to the lower side of the frame Q there is a transverselyarranged share, U, or scraper proper, provided with the braces k.

J ournaled vertically in the rear end of the frame N, and adapted to be raised and lowered therewith, there is a shaft, r, provided lower end with the drum NV.

at its upper end with the wheel L, and at its Attached to the forward part of the frame N, at each side thereof, is a plate, 34, having its rear end curved or rounded, as shown at 35 in Fig. 2.

A cross-bar, 36, connects the side pieces of the V-shaped frame Q, the side pieces being considerably thicker than the bar, which is proportioned to permit the plates 84 to pass freely over the same in turning said frame to adjust the scraper U.

Inclosed between the frame Q and the crossbar 36 there is a suitable flooring or other frame-work for supporting the stud or journal R, as best seen in Fig. 3.

A flange or lip, 37, projects inwardly from the ends of either side piece of the frame Q,

these flanges being respectively adapted to s. enter mortises (not shown) in the forward end ofthe frame N, and thereby aid in supporting the frame Q when the scraper U is arranged diagonally to the frame N and in use.

A cord or chain, d, has its central portion wrapped around the drum W, each of its respective halves or sections being thence carried around a sheave, g, in the rear end of the frame N, and inwardly over a pulley, f, in the apex of the frame Q, at which point they pass or cross each other, their ends being respectively fastened to the side pieces of the frame Q, as seen at c, Fig. 2.

The machine is provided with a seat, A near the forward end of the main frame, for the use of the driver, also with a bar, J, for securing or holding the auxiliary frame at any desired angle when the scraper proper is tilted.

In the use of my improvement the operator of the machine stands on the step 13 and raises or'depresses the scraper U, as occasion requires, by means of the levers J. By raising the outer ends of the levers J the inner ends of the levers I H will be depressed, thereby drawing up the rods 10 h and elevating the frame N and scraper U, and vice versa. It will be obvious that when but one of the le vers J is raised or depressed one side of the frame N, and consequently one end of the scraper U, will be correspondingly raised or depressed, and that when both of said levers are raised or depressed simultaneously both ends of the scraper will be raised accordingly. The lateral adjustment of the scraper is effected by turning the shaft r, the shaft being held in any desired position by a ratchetwheel, M, and pawl m, the ratchet being secured on the shaft and the pawl pivoted to the frame of the machine. The scraper being at right angles to the frames A and N, as seen in Fig. 1, if, now, the wheel Lis turned to the right, that section of the cord d which is marked (P will be wound onto the drum NV, and that marked cl will be unwound, thereby causing the stud R to traverse in the slot 20 from the right to the left hand side of the machine, and the scraper to assume the diagonal position indicated by the dotted lines in Fig. 2. The plates 34 are not flush with the side pieces of the frame N, but there is sufficient space between the sides of said plates and the sides of said frame to respectively receive the side pieces, 40 and 41, of the-frame Q, so that when the scraper is adjusted, as shown by the dotted lines in Fig. 2, the side piece, 40, of the frame Q will rest against the outer side of its plate 34, in which position it is securely fastened by depressing the lever K, thereby turning the rocker-shaft O and causing the arms P to assume a vertical position. It will be obvious that when the side piece, 40, of the frame Q is locked in position at the side of its plate 34 by one of the arms I? the opposite side piece, 41, will stand at right angles to the sides of the frame N, and the scraper U will stand diagonally to said frame. If, now, the lever K is raised, the side piece, 40, released, and the wheel turned to its left to the fullest extent, the cord d will be wound onto the drum XV in the opposite direction from that described, causing the stud R to traverse from the left to the right hand side of the ma- N precisely opposite that indicated by the dot ted lines in Fig. 2.

From the foregoing it will be obvious that the scraper proper may be readily adjusted laterally at any desired angle by means of the wheel L, and vertically at any desired height by means of the levers J, or tilted endwise by using but one of the latter levers.

Having thus explained my invention, what I claim is p 1. In a road-scraper, the combination of the following instrumentalities, to wit: a main frame mounted on Wheels, an auxiliary frame disposed beneath the main frame, and supported thereby, said auxiliary frame being adapted to be tilted or rocked laterally, and also raised and lowered vertically, a scraper proper disposed on a frame beneath the auxiliary frame, and supported thereby, said scraper proper being thus adapted to lateral and vertical adjustment and to be tilted endwise, means for looking or securing the frame carrying the scraper proper at anydesired height, means for looking. or holding the scraper proper at any desired angle when the same is tilted, means for raising, lowering, and tilting the auxiliary frame, and means for adjusting the scraper proper vertically and laterally, and. also tilting the same endwise, substantially as described.

2. In a road-scraper, the auxiliary frame N,

provided with. the studs 20, in combination with the main frame A, provided with the slotted lugs V, the scraper U, means for raising and lowering the frame N, and means for adj usting the scraper laterally, substantially as set forth.

3. In a road-scraper, the main frame A, mounted on the wheels Y X, and provided with the slotted lugs V, pole j, and step B, the

auxiliary frame N, having the slotted bar '1, I

cap S, and plates 34, the V-shaped frame Q, carrying the scraper U, and provided with the stud or journal R, the shaft r, provided with the drum W, cord (1, ratchet M, pawl m, and Wheel L, the rocker-shaft 0, provided with the arms P and arm n, the lever K, mounted in the standard b, and provided with the rod 1', the levers H, mounted in the standards E, the levers I J, mounted in the standards F, the rods h p, and links Z, combined and arranged to operate substantially as described.

4. In a road-scraper, the frame Q, provided with the flanges 37, in combination with the frame N, having the plates 34, and shaft 0, having the arms P, substantially as set forth.

ROBERT N. G'OWELL. \Vitnesses:

AMASA NOROROSS, CHARLES F. BAKER. 

